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Industrial
Hygienic
Instrumentation
ThinkTop® DIGITAL 8-30 VDC PNP/NPN
 | IMPLEMENTATION Alfa Laval ThinkTop® control head has been designed to ensure optimum valve control when used with butterfly, single seat and Mixproof valves and is compatible with all major PLC systems (Programmable Logic Control Systems with PNP/NPN Interface). It is used for food, dairy, beverage and pharmaceutical applications. OPERATION PRINCIPLE ThinkTop® is a control head with indication units and a solenoid valve that is used to control any process valve. It is used to control and manage pneumatic valves and installed on the valve. It receives signals to control the valve from the PLC system and sends feedback signal to the PLC system to indicate the position of the valve. The user installs the ThinkTop® using the remote control (separately ordered) or the buttons on the head to adapt the sensor card to a specific valve or application. Demounting the top unit is not necessary if a remote control is used. | ||
| TECHNICAL DATA Communication interface ..................... Digital Power Supply Voltage .......................... 8-30 VDC Sensor card power supply .................... 24 VDC, 1W Feedback signal #1 .............................. Closed Valve Feedback signal #2 .............................. Open Valve Feedback signal #3 .............................. 1. Seat or 1 External signal Feedback signal #4 .............................. 2 Seat or 1 External signal Feedback signal #5 .............................. Status Valve tolerance band............................. 1-5 Default tolerance band.......................... +- 5 mm Sensor precision................................... +- 0.1 mm Hit size ................................................. 0.1-80 mm Solenoid valve power supply ............... 24 VDC +- 10%, 1W Air supply.............................................. 300-900 kPa (3-9) bar Solenoid types...................................... 3/2 way or 5/2 way Number of Solenoids ........................... 0-3 Manual handle ..................................... Available Jack Fittings ......................................... Ø6 mm | PHYSICAL DATA Material Plastic parts ............................... Reinforced Nylon Steel parts .................................. 304 and 316 stainless steel Gaskets ...................................... Nitrile (NBR) rubber Operating Temperature .............. -20 °C - +85 °C Protection Class ......................... IP66 and IP67 Cable Connection Main Cable union........................ PG11 (Ø4-Ø10 mm) External sensor cable union ....... PG7 (Ø3-Ø6.5 mm) Max. Cable diameter .................. 0.75 mm2 (AWG 20) |
ELECTRICAL CONNECTION  Power Supply Connection Example:  |
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| 1. External body 2. N/A 3. Screw 4. Washer 5. Sensor card 6. Solenoid valve* 7. PT Screw | 8. Base 9. Special X-ring, gray 10. Air fitting 11. Discharge valve 12. Threaded Plug (PG7) 13. Cable union, PG11 14. Air outlet | 15. Adapter 16. Special X-ring, black 17. “O” ring 18. Allen screw 19. Special X-ring 20. Indicator needle | |
| *6a: Selenoid valve (3/2) *6b: Selenoid valve (3/2 or 5/2) |
| OPTIONS - 5 m PVC control cable 12 x 0.5 mm2, (AWG 20); 9611993627 - Air outlet adapter (Figure 1. Basic Design pos. 14) For models before ThinkTop® 2006 November; item code: 9613431501 | ACCESSORIES - IR keyboard - External PNP Sensors - Main union PG11 - PG7 cable union for external sensors - External sensor bracket for Unique Mixproof |
SIZES and ITEM NUMBERS Product Code: 5403  |
Please note the following when placing an order. - Number of solenoid valves (0-3) - Solenoid valve type (3/2 or 5/2) - Air jack installation 6 mm or 1/4” - Please indicate if you will use it for 700 series of valves - Special indication needle for SSV-LS valves; 9613158101 Unique - Special indication needle 9612637001 for SRC-LS Stop valves at size 63.5-101.6 mm/DN 65-100 |